Gentlemen,
Guns is absolutely correct the 180 has some of the best breakers ever made and
delivers the power required for a medium/large layout. IMO the direct lock on limits your layout severely, it is not DCS compatible, I would get rid of it if I were you. AlsoI still recommend having enough power to expand when required however. Always over power your layouts, the old ZW's with 4 working channels does the job quite well and is not as expensive as the new ZW-L or the Z4K. I differ with Guns, in that I do not use bricks at all, this however is just personal preference as to which way to power the layout, either way in reality works quite well.
PCRR/Dave